Medium Fiend (Devil, Wizard), typically Lawful EvilArmor Class 19 (natural armor)
Hit Points 202 (27d8 + 81)
Speed 30 ft., fly 50 ft.STR
15 (+2)DEX
14 (+2)CON
17 (+3)INT
22 (+6)WIS
23 (+6)CHA
18 (+4)Saving Throws Int +12, Wis +12
Skills Arcana +12
Damage Resistances cold; bludgeoning, piercing, and slashing from nonmagical attacks that aren't silvered
Damage Immunities fire, lightning, poison
Condition Immunities poisoned
Senses darkvision 120 ft., passive Perception 16
Languages Draconic, Infernal, telepathy 120 ft.
Challenge 17 (18000 XP) Proficiency Bonus +6